Answer:
X represents the number of product so 3 cause you have 2 pastas and 1 cheese. The length represents the total cost. I think 3 would represent cost? I'm not totally sure on that one. Hope this helps!
Step-by-step explanation:
-3
since the 9 in negative you subtract 9 by 6 and you get 3 then you put the negative sign in front of the 3 making it -3
Yes you did it right